Investigators had been looking into several cases in which the offenders posed as interested buyers, walked through homes, and stole jewelry and other items, police said.

Five such incidents had been reported in Glen Ellyn since July 23, and police said there were “other incidents discovered around the same time period” in the area.

George Kallas was arrested on Aug. 2, and Sophie Kallas turned herself in to police the following day. Both lived in the 900 block of Newton Avenue in Glen Ellyn, but police did not disclose the nature of their relationship.